Door-lock



M. SAHBIJ.

' Doo` Lock.

' APPLICAHUN FILED JUlY 27,1920. v 1,378,622; .Patented May 17,1921.- 2SHEETS-S'HEET l.

' TL FIG. 1

4 V I A MIKE sARBrJ, or lnunnow, MASSACHUSETTS.

' noon-Loox.

p Specification of LettersPatent. Pat-eintgd lliby 17, 1921,

Application filed July 27', 1920. Serial No. 399,234.

To all 'who/m; t may concern.'

Be it known that I, MIKE SARBIJ, a citizen of Ukraine, residing atLudlow, in thev county of Hampden and State of Massachusetts,haveinvented certain new and use ful Improvements in Door-Locks, ofwhich the following is a specification.L

rlhe present invention relates to certain new and useful improvements indoor locks and particularly to thatk class of lock that employs amanually shiftable locking bolt, operable only from one sideof the doorwith means for retaining the locking bolt in its operative andinoperative positions.V

IV ith the above and other objects in view, the present inventionconsists in the novel form, combination and arrangement of partshereinafter more fully described andrshown in the accompanying drawings,wherein like reference characters indicate similar parts throughout theseveral views.

In the drawings, j.

Figure l is a fragmentary front elevational view of st portion of a doorandjamb with the present form of lock built therein,

Fig. 2 is a vertical sectional view taken on line II-*II of Fig. l,

Fig. 3 is a vertical sectional View taken on line 'III-III of Fig. 2showing the lock bolt projected and retained in locked position,

Fig. 4f is a horizontal sectional View taken on lineI IV--IV 0f Fig. 3showing the star wheel engaging the rack portion of the bolt forshifting the same,

Fig. 5 is a detail fragmentary view, partly in section showing thelocking bolt in retracted inoperative position, and

Fig. 6 is a perspective View of the locking bolt, removed from thecasing.

Briefly described, the present invention has for its primary object toprovide a lock for doors and the like, wherein the bolt is manuallyshiftable in opposite directions and operable from one side of the door.The bolt is slidably mounted in a casing provided in the door and hasthe nose portion thereof projected into a keeper provided in the doorjalnb. One face ofthe bolt is pro vided with teeth and is adapted to -beengaged by a gear or star wheel for shifting the bolt to its operativeand inoperative positions. A latch device operable from within the doorpositively holds the bolt in either of its positions.

Referring more vin detail to the accompanying drawings, there isillustrated a por- Y tion of a door indicated bythe reference characterl and a portion of af door janib indicated by the reference characterl2. The

edge'of the door jamb 2 is provided with ak bolt keeper opening 3. witha face plate #l countersunk in the edge of the jamb and having anopening therein vregistering with the socket 3.

A lock mechanism is carried' by the door ll andvincludes a casingpositioned within an opening in the door and formed of side walls 5, adetachable'rear wall 6a bottom wall T and a forward wall 8 that'liesflush with the edge of the door l and has an opening 9- therein thatregisters with the keeper socket Spin the top jamb 2. The form of boltemployed in the lock is shown in detailin Figs.

2 and' 6, as being substantially H-shaped in cross section definingopposite spaced flanges l0, a forward reduced nose 1l anda series ofteeth 12 upon the upper face thereof. The

opposed faces of the side walls 5 of the lock are'provided with guides13 extending between the flanges l() on each sider of the bolt toprovide a guide for the sliding movements of the bolt. The means formanually shifting the bolt includes` a stub shaft let rectangular incross section and inserted through alined openings 'l5 and 16 in thedoor 1 at opposite sides of the lock casing and retained therein by thescrew plug 17 as shown in Fig. 2. A gear or star wheel 18 is carried bya hub 19 having a rectangular bore through which the rectangular shaft14 projects while the inner projecting end of the shaft 14 is providedwith an operating knob 20.

In order to maintain the bolt 1l in either its'operative or inoperativeposition, a latch device is associated therewith and includes pin 2lslidably projecting'through the tubular housing 22 carried Vby thebottom wall 7 of the casing and having a. disk 23 fixed thereon andengaged by a coil spring 24 surrounding the pin within the housing 22 toproject the pin upwardly while a cutout portion 25 is formed in theinner face of the door 1 to provide a clearance space for the lowerhandle end 26fof the pin 2l. As shown in Figs. 2, 3, and 5, the lowerface of the bolt 1l is provided with a lug 2T for engagement by the kpin21. The lug 2T .is of elongated form having straight end either end wallwhen the bolt lO is shifted in either direction, this constructionpermitting the finger grip 26 being released while the spring 2limaintains the pin in engagement with the lug to insure the lockingposition thereof when the lug is moved to a position to present eitherend wall thereof laterally of the pin.

In the operation of the device, the lock being operable only from oneside of the door, the handle 26 is grasped to lower the pin 2l againstthe tension of the spring 2l and to remove the pin from engagement withthe end wall of the bolt lug 2T. ldlhen so positioned, rotation of theknob in either direction will cause a reciprooation of the bolt 9 by thestar wheel 18 upon the shaft let engaging the rack face l2 ot the bolt.The latch pin 2l riding over `the curved lower wall oi' the lug isforced by the spring 2 to move upwardly for engagement with either endwall of the lug 27, the pin engaging the lug as illustrated in Fig. 3 tohold the bolt in its locked position, while in F ig. 5, the vbolt isillustrated as retained in its retracted inoperative position. This formof lock may be alone employed as a retainingmeans for a door or similarstructure, or the device may be employed as a night latch attachment fora door or the like provided with the usual tensioned latch bolt.

While there is herein shown and described the preferred embodiment ofthe invention, it is nevertheless to be understood that minor changesmay be made therein without departing from the spirit and scope of theinvention.

lVhat is claimed as new is y 1. A lock of the type described comprisinga casing, a bolt slidable therein, teeth formed upon one side of thebolt, a gear wheel engaging said teeth for shiftingthe bolt, means forholding the bolt in its operative and inoperative positions, said meanscomprising a tensioned pin carried by the lock casing and an elongatedlug having a curved bottom face carried by the bolt 'adapted to beengaged by the pin.

2. A lock of the type described comprisin'ga casing, a bolt slidabletherein, teeth formed upon one side of the bolt, a gear wheel engagingsaid teeth for shifting the bolt, means forholding the boltin itsoperative and inoperative positions, said means including a tensionedpin slidably projecting through the bottom wall of the lock casing, anoperating handle for said pin, a lug carried by the underside of saidbolt and adapted to be engaged'by said pin for holding the bolt in itsoperative and inoperative positions.

In testimony whereof I afix my signature.

MIKE 'SARBLI

